Safety razor



May 15, 1923. 1,455,726

H. B. HARTMAN SAFETY RA ZOR Filed May 5, 1922 2 Sheets-Sheet 1 May E5,1923. 1,4553% H. B. HARTMAN SAFETY RAZOR Filed May 5, 1922 2Sheets-Sheet 2 Ell 'Petented May 15, lQZZE.

. HARRY B'UXTON HARTMAN, 9F SCOTTDALE, IPENNSYLVANIA.

SAFETY RAZOR.

Application filed May 3, 1922. Serial No. 558,185.

To all whom it may concern:

Be it known that l, HARRY B. HARTMAN, citizen of the United States,residing at Scottsdale, in the county of West-moreland and State ofPennsylvania, have invented certain new and useful Improvements inSafety Razors, of which the following is a specification.

This invention relates to an improvement in safety razors. I

A primary object of the invention is to provide a simple, practical andreliable construction that may be easily and economicallv manufactured,and which may be readily manipulated to quickly clamp the blade inposition or release the same and'yet at the same time hold it securelyin place when in use. In that connection the means for clamping orholding the blade also constitutes a guard or protector for the cornersof the blade thereby reducing the danger of cutting or scratching by thecorner of the blade.

A further object of the invention is to provide a novel universal jointfor connecting the blade carrier with. the handle. lln that connectionit is proposed to provide a spring tensioned joint whereby the bladecarrier may be readily set to the desired adjusted position andfrictionally held in position without requiring other attention.

A. still further object is to provide a universal joint connection thatis susceptible of being easily manufactured and assembled at a minimumof expense and labor.

With the above and other ob ects in new 7 which will more readily appearas the nature of the invention is better understood, the same consistsin the novel construction,combina-tion and arrangement of partshereinafter more fully described, illustrated and claimed.

A preferred and practical embodiment or? the invention is shown in theaccompanying drawings, in which:

Figure l is a plan view of a complete razor embodying the presentimprovements and without the blade.

Figure 2 is a plan view of the blade carrier showing a blade positionedtherein.

Figure '3 is a horizontal sectional view taken on the line 3-3 of Figure2.

Figure 4 is a detail sectional view taken on the line l4 of Figure 2.

'Fi re 5 is a detail peective view of the b ade.

Figure 6 is a side elevation of the razor partly in section showing moreclearly the universal joint connection.

Figure includes side and top views of the socket portion of the joint.

Figure 8 is a detail view of a straight form of handle.

Figure 9 is a side elevation illustrating the use of the handle inFigure 8. @5 Similar reference characters designate cor responding partsthroughoutthe several figures of the drawings.

In the embodiment of the invention shown in the accompanying drawings itis proposed to'provide a blade carrier I mounted upon a handle H by anovel universal joint J whereby the blade and handle may be adjusted toany desired and convenient angle to suit the individual user, as willhereinafter more fully appear.

Referring first to the blade carrier 1 it will be observed that thefront edge is formed with a plain guard portion 2 while thejbody ispreferably provided with a pair of upstanding posts or lugs 3-3forentering the openings 4-41: of a bladeB thereby to properly positionand hold the cutting edge of the blade with reference to the guard edge'2.

For the purpose ofsecuring or looking the blade to the carrier novelswinging clips designated generally as 5 are used. As will be seen fromthe drawings each clip is pivoted as indicated at 6 adjacent a rearcorner of the carrier so that the same may be moved into and out ofoverlapping or embracing relation with the blade and carrier to clampthe blade in place. Structurally each clip 5 preferably consists of abody 7 the rear end of which is pivoted to the underside of the carrierwhile the forward end is made of substantially U-shaped cross sectionthereby providing upper and lower clamping jaws 8 and 9 respectively foroverlying and engagroe ing with the blade and underlying and engagingwith the bottom edge of the carrier. in connection with the upperclamping jaw 8 it will be observed that the same is QTQ- vided witha'raised portion S fer fitting roe over and clearing the upstandingposts on lugs 3 which project through the openings in the blade 3.

Also another important and distinctive feature of the jaw 8 is that'itextends forno wardly as indicated at 10 to-overlie or cover the cornerof the blade B thereby providv 25 durin at 11. I This ing a guard foreliminating the possibility of cutting or scratching by the corner ofthe blade which would be otherwise left unprotected.

From the foregoing it will be apparent that the present inventionprovides a carrier for holding a single edged blade B havingperforations for fitting over fixed posts or lugs 3 on the carr1er, theblade bemg then prevented from being displaced from the posts by meansof the pivoted or swinging clips 5 operating ln the plane of the carner.In that connectlon 1t will-be observed that the interlock between theblade and the lugs reliably holds the blade in position so that thecutting edge thereof will always be properly positioned with 4 referenceto the ard. Then, after the clips have clainpe displacement from thelugs while at the same time the guard edges of the CllPS Wlll concealand protect the corners of the blade so that they will not cut orscratch the face shaving. a Re erring now to the universal jointconnection J for adjustably mounting the blade carrier on the handle itwill be observed that the-same includes ball and socket mem- 80 barswhich are capable of facile assembly and also are of: great simplicity,thereby materially enhancm production in quan tities. To that en thepresent arrangement includes a socket member or shell 11 as which ispreferably in the form ,of a tube having at one edge the bosses 12 forfitting into 0 enings 13 in the blade carrier 1 so that tl fe same maybe riveted to the blade carrier thereby to hold the socket member firmlyin lace. a

' The an of the 'member11 opposite that having the bosses is slotted asmdicfited at 14 to provide the socket seats 15 which when bentinwardlyas shown in the drawing provide a seat for receiving the ball 16. Whenthe seats are bent'into position to provide the base of the socket forreceiving the ball a four-way slot is provided, andlasshown in Figure 9for example, the shank 17 of .50 the handle may fit into any one ofthewings of the four-way slpt to thereby establish an interlock betweenvthe {handle and the socket member if desired, However, it is one of theobjects of the {present invention as to provide a ball and socket jointwhich becomes automatically held in :adjusted or set position andtherefore a splrin 18 is utilized' to frictionallhold ,:t e hall 16a'against'th'e seats 15 o the tubular member ring'18 is vconfinedbetween the ball and t e underside ,of the blade carrier 1" so'that-whenthe parts are assembled,

the l springis concealedwithin the housing afi'o ed y the tubular.member 11 yand by' e TGESOIl Of the compression'thereof due to its 16.After the ball is placed over the spinthe blade to the carrier- 20 the.blade will be effectually held againstv 18 may then be placed behindthe ball 16 confinement in the relative small space between the ball andthe blade carrier the ball is pressed against the seats 15 withsuflicient friction to hold the blade carrier at any desired angle withreference to the handle.

As will be observed from the drawin the shank 17 of the handle H isfitted with a spindle portion 17 for receiving the ball [6 dle the endofthe latter may be riveted to securely hold the ball thereto. Also, itwill be iapparent that the shank-17 of the handle I may be curved orangular as shown in Figure 6 or may be straight as shown in Figures 8and 9.

With reference to the manner of assembling the construction described itmay be observed that the ball 16 may be. dropped into the spring housingor socket member 11 and the spindle portion 17 of the ban dle shankplaced through the opening in the ball and the end of the spindleriveted while the ball is in the housing. The spring and the bosses 12inserted in the openin s 13 in the blade carrier. The ends of t e bosses12 may then be riveted to hold the spring housing firml to the carrierand also confine and house t e sprin to' cause the same to exert theproper tenslon on the balla en the partsare assembled the razor bladeholder can be revolved a complete turn and when it is desired to lock itat a shaving angle the shank 17 maybe placed lnto one of the slotsl4. a

Without further description it is thought that the features andadvantages of the present improvement will be I readily apparent'tothose skilled'in the art and it will of course'be understood that"changes in the form, proportion and minordetails of constructlon may beresorted to without departing from the s irit of the inventionor scopeof the appen ed claims. I claim 1. A safety razor including a bladecarrier having means for interlockingwith the blade toposition the samewith reference to the guard edge thereof, clips pivoted to the rearcorners of the carrier and havin earner. '3.-A safety razor including ablade carher having upstanding posts theregn, a blade provided withopenings ,for receiving-1st .and guard clips pivotally securedto thesaid posts, and pivoted blade clamping clips arranged at the oppositeside edges of the blade carrier and consisting of a body piv otallyconnected to the carrier-at one end while the opposite end is ofsubstantially U-shaped formation providing clamping jaws, one of saidclamping jaws being provided with a recess for receiving the portions ofthe upstanding projections protruding through the blade and alsoprovided with an extension for overlying and guarding the corner of theblade.

4. A safety razor including a blade carrier, and combined blade clampingand guard clips pivotally secured to the carrier and adapted to projectbeyond the position of the corner of the blade when moved into clampingposition with the blade.

5. A safety'razor including a blade car rier, a tubular socket memberfitted thereto,

'said socket member having a slotted ball seat at one end and connectedat the other end with the carrier, and a handle having an angular endportion, a ball carried by the tip of the angular end portion of thehandle and adapted to rest in said ball seat,

and a spring confined between the ball and the carrier.

6. A safety razor including a blade carrier, a tubular socket memberrigidly secured at one end to the under side of the blade carrier, andthe opposite end thereof being provided with a slotted ball seat, a ballhaving a bearing on said seat, a spring confined between the carrier andthe ball for frictionally holding the latter to its seat, and a handlefitted to the ball and adapted to register with said slots totemporarily lock the blade carrier in a set angular position to providethe desired shaving angle for the blade on the blade carrier.

7. A safety razor including a blade carrier, and combined blade clampingand guard clips shiftably secured to the carrier and adapted to mask thecorner of the blade when moved into clamping relation thereto.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

HARRY BUXTON HARTMAN.

Witnesses:

ELIZABETH LANDENBERGER, A. J. STRICKLER.

